Separating-head for centrifugal or pneumatic elevators.



No. 755,714. PATENTED MAR. 29,1904.

I J. K. SHARPE, JR. SEPARATING HEAD FOR GENTRIFUGAL 0E PNEUMATIC, ELEVATORS.

APPLICATION FILED JAN. 21, 1903. RENEWED AUG. 31. 1903.

N0 MODEL.

ammonia: Joseph K. Sharpe Jr.

UNITED STATES Patented March 529, 1904.

PATENT OFFICE.

JOSEPH K. SHARPE, JR., OF INDIANAPOLIS, INDIANA, ASSIGNOR TO THE PNEUMATIC ELEVATOR AND WEIGHER COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION OF INDIANA.

SEPARATING-HEAD FOR CENTRIFUGAL OR PNEUMATIC ELEVATORS.

SPEGIFIGA TION forming part of Letters Patent No. 755,714, datedMarch 29, 1904. Application filed January 21,1903. Renewed August 31, 1908. Serial No. 171,453. (No model.)

To all whom it may concern:

Be it known that I, JosEPH K. SHARPE, Jr., a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and usefulImprovements in Separating-Heads for Centrifugal or Pneumatic Elevators, of which the following is a specification.

The object of my present invention is to provide a head or receptacle into which the 'material from a pneumatic or centrifugal elevator will be first discharged from the elevator-duct, which will have the effect of separating the material so elevated from the air I 5 which'may accompany it, permitting the latter to escape through the upper portion or top, while the material itself escapes downwardly through a discharge opening or mouth into such receptacle as may be provided to receive it or convey it away.

Referring to the accompanying drawings, which are made a part hereof and on which similar reference characters indicate similar parts,.Figure I is a side elevation of a sepa- 15 rating-head embodying my said invention with a fragment of the elevator-duct attached thereto and a portion of a weigher, such as is frequently used therewith, suspended therefrom; Fig. 2, a central vertical sectional view thereof as seen when looking in the direction indicated by the arrows from the dotted line 2 2 in Fig. 1; Fig. 3, a top or plan view as seen when looking downwardly from the dotted line 3 3 above Fig. 1, and Fig. A a horizontal sectional view as seen when looking downwardly from the dotted line 4 4 in Fig. 2.

The elevator-duct 21 is shown as attached to one side of the body 22 of the separatinghead and as entering the same at an angle, the

t construction and arrangement being that which is especially adapted to be used with the elevator which forms the subject-matter of my companion application executed and filed concurrently herewith, although, as is L5 obvious, this separating-head is adapted to be used with other constructions of. elevators. Said separating-head is of considerable size,

its capacity being much greater than that of the corresponding length of the duct 21, so that the discharge from said duct may expand as it is deposited therein, thus reducing the pressure. The upperportion of this $61331. rating-head is perforated or reticulated in order to permit the escape of the air which may enter said head with the material being elevated. Any perforate material may be used for this top 23; but I prefer to use woven or screen wire, as is 'best shown in Figs. 2 and 3. The body of the structure tapers as it approaches the bottom and terminates inv a mouth or discharge-orifice of appropriate size and shape to conveniently communicate with the receptacle into which the material to be lifted is to be delivered. As before stated, I have shown an automatic weigher suspended to the lower end of this separating-head, the particular form of which is illustrated in Patents Nos. 714:, 358 and 650, 59-3, said weigher being connected to said head by means of bolts 32, uniting its side frames 33 with ears 34: of the sides of the separating-head. The discharging end or mouth of said separatinghead just enters the intermediate hopper 35 of said weigher, said hopper being carried by the rigid frame part 36, below which the weigherdrum 31 operates.

In operation the grain or other material being elevated is discharged through the duct 21 into the body 22 of the separating-head. The said material then falls to the bottom of this head and passes outthrough its mouth, while any air which may enter with it, as well as any fine dust which may be held in suspension therein, will pass-out through the perforate top 23. The forceof the material as it is discharged from the duct will be received by the imperforate opposite side of the body 22 and yvill not come in direct contact with the screen, which is thus saved from excessive wear, and may therefore be of much lighter 9 and less expensive material than where the force of the material comes directly upon the screen.

Having thus fully described my said invention, what I claim as new, and desire to secure portion below the point of entrance of the by Letters Patent, is duct, substantially as and for the purpose set A separating-head for centrifugal or pneuforth. matic elevators comprising a body of consid- In witness whereof I have hereunto set my 5 erably-greater size than the duct through hand and seal, at Indianapolis, Indiana, this I5 which the material enters and with which said 13th day of January, A. D. 1903.

duct communicates, a perforate upper portion JOSEPH K. SHARIE, JR. [1,. 8.] through which air and dust may escape above Witnesses: the point of entrance of the duct, and a dis- CHESTER BRADFORD,

IO charge-mouth for the material at the lower JAMES A. WALSH. 

